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【单选题】
双胎输血综合征可以发生在：A.
所有类型的双胎
B.
单卵双胎
C.
双卵双胎
D.
联体双胎
E.
寄生胎
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反馈参考答案：
举一反三
【单选题】在图样上标注形位公差要求，当形位公差前面加注 Φ 时，则被测要素的公差带形状应为（ ） 。
A.
．两同心圆
B.
．圆形或圆柱形
C.
．两同轴线圆柱面
D.
．圆形、圆柱形或球形
【单选题】I went to the post office，only_____ it was closed.
A.
finding
B.
to find
C.
to be finding
D.
found
【简答题】CTI770·3型凿岩台车摆动机构下转盘、 与行走车架铸为一体。
【单选题】John was ___ Atlanta where his company had recently set up a new office.
A.
qualified for
B.
interviewed for
C.
transferrred to
D.
carried to
【单选题】听力原文：M: Do you know the address of the office? I want to write them to enter myself for the competition. W: Here it is. But you have to apply in person. Q: What must the man do? (14)
A.
Go to the office himself.
B.
Write to the office.
C.
Send his application.
D.
Apply over the phone.
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